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CVE-2026-19416

KiviCare < 4.5.4 - Patient+ Cross-Patient Appointment Modification via IDOR

MEDIUM
4.3
CVSS Score
Published: August 19, 2026 at 06:00 AM UTC
Updated: August 26, 2026 at 04:41 PM UTC
1 product affected across 1 vendorKivicare

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

The KiviCare WordPress plugin before 4.5.4 does not verify that the requesting user owns the appointment being modified, allowing authenticated patient-level users to cancel and reschedule other patients' appointments.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Kivicare· Iqonicwordpress-plugin
60%
v < 4.5.4
Affected range stops below 4.5.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

ExploitVDB EntryTechnical Description
Source: cverecord
https://wpscan.com/vulnerability/ef2aa44b-3624-4e6d-9b25-e33d4a1a21d2/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-639

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